Picker-check for looms.



N o. 859.554. PATENTED JULY 9, 1907. M. FFIBLD. lPIKER GHEGK FOR LOOMS.nrLIoAnon Hum In 1n 190s I WMM 'UNITED 'sfrafrns Ninarinvr'f OFFICE.

MI'LLAnD F. .rr-ELD, or W'INTHROP, MASSACHUSETTS.

PICKER-CHECK FOR Loomis.Y

Specification of Letters Patent.

satented :hay 9, 1907.

Application iiled 12, 1906. Serial No. 316.467.

' ing device adapted to be applied to the lay of a loom,

and operatingas a direct check for the picker-stick.

The invention has lor its object to provide a check which will producethe desired increasing resistance on `the return or backward motion oithe picker-stick and a less resistance on the forward motion thereof,which will prevent rebound, which will be economical with regard to thewear on the stick, and with respect to its own durability, which will hesimple in construction and easily replaced, which will require no oil,and

'which will be easily applied and-adjusted.

The present invention relates to that class oi' pickerehecks in whichthe {rk-tional resistance is applied on a j side of the stick, andit'comprises a plurality oi layers el straps et' leather er itsequivalent on each side oi' the path ol' the stick, such layers on eachside consisting of a main layer and one or more supplemental layers profjecting int'o'the palh'oi the picker-stick, the main la ers havinortheir, rear or inner ends directl secured to springs disposedsubstantially in linewith the cheek ing straps.

The nature oi the invention is iully described in detail below, andillustrated in the accompanying draw- Figure l. is airont elevation ofone end oi' thelay and adjacent parts oi a loom showing my inventionapplied thereto, the picker-stick being shown at the end oi' its.

stroke. lFig; 2 is an inverted plan oi the check'removed, showing thestick entering the check during its backward movement. f

`Similar letters oi reiertuufe indicate corresponding parts.

shuttle, d the shuttle-box, c the picker and g the pickerstick--allconstructed as usual.

lt represents a double hook-shaped hanger, preferably oi' strong wire,whose hooked end h/ catches over the up-v per edge oi the end ol' theend-iron b. The looped Vlower end o1' this hanger extends intoand undernotches 'E in the lower edges of 'a .stout leather' strap which isdoubled 'orlolded near the notches into'two equal horizontal parts Eachoi' those parts is provided with a horizontal row of vertical slets'n,and caught in these slots are straps p and s, each oi said straps havingits ends provided with projecting tongues Il which extend intothe slotsas shown, and thereby retain the straps imposition. The straps p and sare not of equal length,

a represents the lay, I) the endiron thereon, c thel the shorter strap pbeing between the 'strap s and the extent toward orl into thepath of thepicker-stick, the innermost strap being'oi course that/Which is tocome`into direct Contact withv the stick.

have their opposite ends caught in the free ends ofthe straps lc, and insuitable eyes w in rods y extending from the loom? on opposite sides ofthe path of the pickerstiCk. I

In operation, the picker-stick on its backward movewhich it comes intocontact, and said straps s press back the strap p #,'and the straps sand p operate diwhich spread tofa greater or less extent, and at thesanie time expand Vto a corresponding degree the spiral ing irictionalresistance until approximately the end of the stroke is reached, andthen the stick is prevented from rebound. This resistance is regulatedaccording to the conditions, .in two ways, viz., by applying additionalsupplemental straps to the main strap k, and by placing the ends ortongues of the supplemental straps into holes `which are nearertogether, thus causing the straps-to protrude vfarther into the path ofthe pickerstick. l

pickerfstick but can be regulated to suit different looms, to an exactdegree, not only by varying the applying stronger or weaker springs. V

The resistance as the stick starts on its forward movement is very muchless than when it is entering the bound.

Having thus i'ully described my invention', what I claim, and desire tosecure by Letters Patent, iszprsing llexlile main straps on oppositesides of the pickersticlc'nnd supplemental straps extending from saidmain checkingl its movement by frictionnl contact with the sides ol' thestiek.- i

2. In a picker-check foi looms, u checking device, conlprlsing flexiblemain sti-nps on opposite sides of the pickel stick provded with a serieso1.' slots, and supplemental straps wliose'opposite ends 'are Insertedin .said slots, whereby the supplemental straps extend from the mainchecking its movement by frlctlonnl contact with the sides of the stick.

main strap 7c. y EachV supplemental strap has its ends or. ,tongues tinserted in holes which are at such a distance apart as to cause thestrap to protrude for the desired Spiral springs 'vV ment presses hackthestraps son opposite sides with l rectly by means of their tongues onthe main straps c springs o. Thus there isprovided a gradually increas,

It will readily. be seen that in this device the fric# tional resistanceis not only on' opposite sides of the' numbers of supplemental strapsand the degree of their: projection into the path of the picker-stick,but also by,v

check near the end of its backward movement, .and in. tact is but littlemore than isy necessary to prevent re straps into the path ofthepicker-stick, for the purpose of' self.

l. ln n mettent-heck for looms, a checking device, cornl sirnps into thepnth oi the picker-stick, for therpnrpose of 3. ln a picker-clieck forlooms, a checkingdevice, com K prlsing exibie main straps on oppositesides of the pickerstlck. supplemental straps extending from the mainstraps into thq path of the picker-stick, and springs connecting theinner ends of the main straps with the lay, for the purpose set forth. Y

f4. In a picke`r-check fior, looms, u checking device, comypxlsingflexible main straps on opposite sides of the pickerstick, supplementalstraps extending from the main straps linto the path ot thepicker-stick, springs .connecting the in- 'ner ends ofthe main strapsywith the lay, an end-iron secured to said l'ay and a hanger extendingfrom the end.- iron into supporting engagement with the main straps, forthe purpose set forth.

Inv testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses. 15

MiLLARD F. FIELD.

